So, the usual: trees, the sea, and indigenous iconography. The Seattle Times reader poll came up with more interesting and self-aware names than this list, including the Seattle Freeze. But absent in both the registered domains, the reader suggestions, and anywhere else but my own brain, apparently, is the obvious answer:

Seattle Roasters.

Before you roll your eyes into that Flat White, kindly consider these ten selling points:

Meets the NHL naming convention of coopting a region's major export (perceived or actual), like the Edmonton Oilers and St. Louis Blues